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Finding the Fourth Proportional to 67,469.52, 93,119.31 and 39,191.61

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Solution

The fourth proportional to 67,469.52, 93,119.31 and 39,191.61 is: 54,091.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,469.52 : 93,119.31 = 39,191.61 : x
  2. Step 2: Convert to fraction form
    67,469.52/93,119.31 = 39,191.61/x
  3. Step 3: Cross multiply
    67,469.52x = 93,119.31 × 39,191.61
  4. Step 4: Simplify right side
    67,469.52x = 3,649,495,680.99
  5. Step 5: Solve for x
    x = 3,649,495,680.99/67,469.52
  6. Step 6: Final answer
    x = 54,091.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.